Given that I spend so much of my these these days using electronic devices, I thought a thread about those which are useful to the study of medicine and in medicine would be a great idea! 
Here’s a list of my favorites:
- iPad - hard to imagine my life without it though I’m going to need to upgrade to the 128GB version VERY soon! I also saw them used on almost every clinical rotation I participated in last semester.
- iAnnotate for #1, annotates PDF files.
- Dragon dictation software is a necessity thanks to a recent shoulder/wrist injury. It’s free and “understands” most of the biomedical terms I use.
- Dragon medical, another voice recognition app that links to medscape and medline.
I guess I’ll start with an addition.
Practice Fusion is a free EMR for anyone (should be ALL of us) interested in seeing how an EMR works:
https://www.practicefusion.com/
Swift player allows you to increase/decrease the playback speed of youtube videos on the iPad.
It’s available in the iTunes Store for $3.99.
Adding Okukar a PDFS reader to this list:
https://okular.kde.org
I don’t have experience with EMR or the dictation software, but cannot agree more on the iPad and iAnnotate. LOVE them. I know there are a lot of other apps out there for doctors, including diagnostic algorithms, Rx manuals, etc. I imagine I’ll be introduced to those as I move through the process.
In my own current work in the medical publishing field, I have also seen several really cool clinical support tools: UpToDate (Wolters Kluwer), ClinicalKey (Elsevier), AccessMedicine (McGraw-Hill) are some of them. These are mobile/desktop apps that employers generally pay for. Also lots of really neat medical reference eBook collections available (again, Woters Kluwer, Elsevier, Springer, etc.). Not the kind of stuff you’d necessarily read cover to cover, but texts you’d have access to in the event you had a question on a particular diagnosis or condition. Can’t wait to start using all this cool technology! 
Cool topic. Thanks for bringing it up.